/**
 * Marlin 3D Printer Firmware
 * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 */
#pragma once

/**
 * Geeetech GTM32 Rev. B board pin assignments
 */

#include "env_validate.h"

#define BOARD_INFO_NAME      "GTM32 Rev B"
#define DEFAULT_MACHINE_NAME "M201"

#define BOARD_NO_NATIVE_USB

//#define DISABLE_DEBUG

//
// It is required to disable JTAG function because its pins are
// used as GPIO to drive the Y axis stepper.
// DO NOT ENABLE!
//
#define DISABLE_JTAG

//
// If you don't need the SWDIO functionality (any more), you may
// disable SWD here to regain PA13/PA14 pins for other use.
//
//#define DISABLE_JTAGSWD

// Ignore temp readings during development.
//#define BOGUS_TEMPERATURE_GRACE_PERIOD    2000

// Enable EEPROM Emulation for this board as it doesn't have EEPROM
#if ANY(NO_EEPROM_SELECTED, FLASH_EEPROM_EMULATION)
  #define FLASH_EEPROM_EMULATION
  #define MARLIN_EEPROM_SIZE              0x1000  // 4K
#endif

//
// Limit Switches
//
#define X_MIN_PIN                           PE5   // ENDSTOPS 15,17
#define X_MAX_PIN                           PE4   // ENDSTOPS 16,18
#define Y_MIN_PIN                           PE3   // ENDSTOPS 9,11
#define Y_MAX_PIN                           PE2   // ENDSTOPS 10,12
#define Z_MIN_PIN                           PE1   // ENDSTOPS 3,5
#define Z_MAX_PIN                           PE0   // ENDSTOPS 4,6

//
// Steppers
//
#define X_STEP_PIN                          PC6
#define X_DIR_PIN                           PD13
#define X_ENABLE_PIN                        PA8

#define Y_STEP_PIN                          PA12
#define Y_DIR_PIN                           PA11
#define Y_ENABLE_PIN                        PA15

#define Z_STEP_PIN                          PD6
#define Z_DIR_PIN                           PD3
#define Z_ENABLE_PIN                        PB3

// Extruder stepper pins
// NOTE: Numbering here is made according to EXT connector numbers,
//       the FANx_PWM line numbering in the schematics is reverse.
//       That is, E0_*_PIN are the E2_* lines connected to E2_A1 step
//       stick that drives the EXT0 output on the board.
//
#define E0_STEP_PIN                         PC14
#define E0_DIR_PIN                          PC13
#define E0_ENABLE_PIN                       PC15

#define E1_STEP_PIN                         PA0
#define E1_DIR_PIN                          PB6
#define E1_ENABLE_PIN                       PA1

#define E2_STEP_PIN                         PB2
#define E2_DIR_PIN                          PB11
#define E2_ENABLE_PIN                       PC4

//
// Heaters / Fans - INFO: Extruders ports are in reverse order. Pin numbers here differ from schematic. Original firmware assumes heater, fan and temp sensor on port EXT0 PB0, PB9, PC2.
//
#define HEATER_0_PIN                        PB0   // EXT0 port.
#define HEATER_1_PIN                        PB5   // EXT1 port
#define HEATER_2_PIN                        PB4   // EXT2 port
#define HEATER_BED_PIN                      PB1   // CON2X3 hotbed port

//
// These are FAN PWM pins on EXT0..EXT2 connectors.
//
//#define FAN0_PIN                          PB9   // EXT0 port
#define FAN1_PIN                            PB8   // EXT1 port
#define FAN2_PIN                            PB7   // EXT2 port

#ifndef E0_AUTO_FAN_PIN
  #define E0_AUTO_FAN_PIN                   PB9   // EXT0 port, used as main extruder fan
#endif

//
// Temperature Sensors
//
#define TEMP_0_PIN                          PC2   // EXT0 port
#define TEMP_1_PIN                          PC1   // EXT1 port
#define TEMP_2_PIN                          PC0   // EXT2 port
#define TEMP_BED_PIN                        PC3   // CON2X3 hotbed port

//
// Misc. Functions
//
#define LED_PWM                             PD12  // External LED, pin 2 on LED labeled connector

//
// LCD / Controller
//

#if HAS_WIRED_LCD

 #if IS_RRD_SC

    //
    // LCD display on J2 FFC40
    // Geeetech's LCD2004A Control Panel is very much like
    // RepRapDiscount Smart Controller, but adds an FFC40 connector
    // connected with a flat wire to J2 connector on the board.
    //
    #define LCD_PINS_RS                     PA12  // CS chip select /SS chip slave select
    // RW is hardwired to VSS
    #define LCD_PINS_EN                     PC7   // SID (MOSI)
    #define LCD_PINS_D4                     PD1   // SCK (CLK) clock
    #define LCD_PINS_D5                     PD4
    #define LCD_PINS_D6                     PD5
    #define LCD_PINS_D7                     PD7

    #define BTN_EN1                         PE8
    #define BTN_EN2                         PE9
    #define BTN_ENC                         PE13

    //#define GTM32_PRO_VB_USE_LCD_BEEPER
    #define GTM32_PRO_VB_USE_EXT_SDCARD

  #else
    //
    // Serial LCDs can be implemented in ExtUI
    //
    //#define LCD_UART_TX                   PD8
    //#define LCD_UART_RX                   PD9
  #endif

  // Alter timing for graphical display
  #if IS_U8GLIB_ST7920
    #define BOARD_ST7920_DELAY_1              96
    #define BOARD_ST7920_DELAY_2              48
    #define BOARD_ST7920_DELAY_3             715
  #endif

#endif // HAS_WIRED_LCD

//
// Beeper
//
#ifdef GTM32_PRO_VB_USE_LCD_BEEPER
  // This is pin 32 on J2 FFC40 and pin, goes to the beeper
  // on Geeetech's version of RepRapDiscount Smart Controller
  // (e.g. on Rostock 301)
  #define BEEPER_PIN                        PE12
#else
  // This is the beeper on the board itself
  #define BEEPER_PIN                        PB10
#endif

/**
 * The on-board TF_CARD_SOCKET microSD card socket has no SD Detect pin wired.
 *
 * The FFC10 (SD_CARD) connector has the same pins as those routed to the FFC40 (J2)
 * connector, which usually go to the SD Card slot on the Geeetech version of the
 * RepRapDiscount Smart Controller. Both connectors have the card detect signal.
 *
 * The on-board SD card and the external card (on either SD_CARD or J2) are two
 * separate devices and can work simultaneously. Unfortunately, Marlin only supports
 * a single SPI Flash device (as of 2019-07-05) so only one is enabled here.
 */
#if ENABLED(GTM32_PRO_VB_USE_EXT_SDCARD)
  //
  // SD Card on RepRapDiscount Smart Controller (J2) or on SD_CARD connector
  //
  #define SD_SS_PIN                         PB12  // PC11
  #define SD_SCK_PIN                        PB13  // PC12 // PC1
  #define SD_MOSI_PIN                       PB15  // PD2  // PD2
  #define SD_MISO_PIN                       PB14  // PC8
  #define SD_DETECT_PIN                     PC7

#else
  //
  // Use the on-board card socket labeled TF_CARD_SOCKET
  //
  #define SD_SS_PIN                         PA4
  #define SD_SCK_PIN                        PA5
  #define SD_MOSI_PIN                       PA7
  #define SD_MISO_PIN                       PA6   // PA6
  #define SD_DETECT_PIN                     -1    // Card detect is not connected
#endif

#define SDSS                           SD_SS_PIN

#if ENABLED(WIFISUPPORT)
  //
  // ESP WiFi can be soldered to J9 connector which is wired to USART2.
  //
  #define ESP_WIFI_MODULE_COM                  2
  #define ESP_WIFI_MODULE_BAUDRATE        115200
  #define ESP_WIFI_MODULE_RESET_PIN         -1
#endif
